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<li class="toctree-l3 current"><a class="current reference internal" href="#">rbd-replay-many</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#id1">提纲</a></li>
<li class="toctree-l4"><a class="reference internal" href="#id2">描述</a></li>
<li class="toctree-l4"><a class="reference internal" href="#id3">选项</a></li>
<li class="toctree-l4"><a class="reference internal" href="#id4">实例</a></li>
<li class="toctree-l4"><a class="reference internal" href="#id5">使用范围</a></li>
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  <section id="rbd-replay-many-rbd">
<h1>rbd-replay-many -- 在几个客户端上重放 RBD 工作负荷<a class="headerlink" href="#rbd-replay-many-rbd" title="Permalink to this heading"></a></h1>
<section id="id1">
<h2>提纲<a class="headerlink" href="#id1" title="Permalink to this heading"></a></h2>
<div class="line-block">
<div class="line"><strong>rbd-replay-many</strong> [ <em>options</em> ] --original-image <em>name</em> <em>host1</em> [ <em>host2</em> [ … ] ] -- <em>rbd_replay_args</em></div>
</div>
</section>
<section id="id2">
<h2>描述<a class="headerlink" href="#id2" title="Permalink to this heading"></a></h2>
<p><strong>rbd-replay-many</strong> 工具用于在几个客户端上重放 RBD 载荷。虽然所有客户端使用相同的载荷，但它们对单独的映像重放。正像 librbd 的常规用法，其中各原始客户端都是有各自映像的虚拟机。</p>
<p>配置和重放文件不会自动复制到客户端。
重放映像必须存在才能进行重放。</p>
</section>
<section id="id3">
<h2>选项<a class="headerlink" href="#id3" title="Permalink to this heading"></a></h2>
<dl class="std option">
<dt class="sig sig-object std" id="cmdoption-rbd-replay-many-original-image">
<span class="sig-name descname"><span class="pre">--original-image</span></span><span class="sig-prename descclassname"> <span class="pre">name</span></span><a class="headerlink" href="#cmdoption-rbd-replay-many-original-image" title="Permalink to this definition"></a></dt>
<dd><p>指定最初被追踪映像的名字（和快照），
对正确地映射名字是必要的。</p>
</dd></dl>

<dl class="std option">
<dt class="sig sig-object std" id="cmdoption-rbd-replay-many-image-prefix">
<span class="sig-name descname"><span class="pre">--image-prefix</span></span><span class="sig-prename descclassname"> <span class="pre">prefix</span></span><a class="headerlink" href="#cmdoption-rbd-replay-many-image-prefix" title="Permalink to this definition"></a></dt>
<dd><p>要进行重放的映像名前缀。指定
--image-prefix=foo 可使客户端重放 foo-0 、 foo-1 等等。
默认为最初映像名。</p>
</dd></dl>

<dl class="std option">
<dt class="sig sig-object std" id="cmdoption-rbd-replay-many-exec">
<span class="sig-name descname"><span class="pre">--exec</span></span><span class="sig-prename descclassname"> <span class="pre">program</span></span><a class="headerlink" href="#cmdoption-rbd-replay-many-exec" title="Permalink to this definition"></a></dt>
<dd><p>rbd-replay 可执行文件的路径。</p>
</dd></dl>

<dl class="std option">
<dt class="sig sig-object std" id="cmdoption-rbd-replay-many-delay">
<span class="sig-name descname"><span class="pre">--delay</span></span><span class="sig-prename descclassname"> <span class="pre">seconds</span></span><a class="headerlink" href="#cmdoption-rbd-replay-many-delay" title="Permalink to this definition"></a></dt>
<dd><p>启动各客户端的延时，默认为 0 。</p>
</dd></dl>

</section>
<section id="id4">
<h2>实例<a class="headerlink" href="#id4" title="Permalink to this heading"></a></h2>
<p>典型用法：</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">rbd</span><span class="o">-</span><span class="n">replay</span><span class="o">-</span><span class="n">many</span> <span class="n">host</span><span class="o">-</span><span class="mi">0</span> <span class="n">host</span><span class="o">-</span><span class="mi">1</span> <span class="o">--</span><span class="n">original</span><span class="o">-</span><span class="n">image</span><span class="o">=</span><span class="n">image</span> <span class="o">--</span> <span class="o">-</span><span class="n">c</span> <span class="n">ceph</span><span class="o">.</span><span class="n">conf</span> <span class="n">replay</span><span class="o">.</span><span class="n">bin</span>
</pre></div>
</div>
<p>实际上将执行下列的命令：</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">ssh</span> <span class="n">host</span><span class="o">-</span><span class="mi">0</span> <span class="s1">&#39;rbd-replay&#39;</span> <span class="o">--</span><span class="nb">map</span><span class="o">-</span><span class="n">image</span> <span class="s1">&#39;image=image-0&#39;</span> <span class="o">-</span><span class="n">c</span> <span class="n">ceph</span><span class="o">.</span><span class="n">conf</span> <span class="n">replay</span><span class="o">.</span><span class="n">bin</span>
<span class="n">ssh</span> <span class="n">host</span><span class="o">-</span><span class="mi">1</span> <span class="s1">&#39;rbd-replay&#39;</span> <span class="o">--</span><span class="nb">map</span><span class="o">-</span><span class="n">image</span> <span class="s1">&#39;image=image-1&#39;</span> <span class="o">-</span><span class="n">c</span> <span class="n">ceph</span><span class="o">.</span><span class="n">conf</span> <span class="n">replay</span><span class="o">.</span><span class="n">bin</span>
</pre></div>
</div>
</section>
<section id="id5">
<h2>使用范围<a class="headerlink" href="#id5" title="Permalink to this heading"></a></h2>
<p><strong>rbd-replay-many</strong> 是 Ceph 的一部分，这是个伸缩力强、开源、分布式的存储系统，更多信息参见 <a class="reference external" href="https://docs.ceph.com">https://docs.ceph.com</a> 。</p>
</section>
<section id="id6">
<h2>参考<a class="headerlink" href="#id6" title="Permalink to this heading"></a></h2>
<p><a class="reference internal" href="../rbd-replay/"><span class="doc">rbd-replay</span></a>(8),
<a class="reference internal" href="../rbd/"><span class="doc">rbd</span></a>(8)</p>
</section>
</section>



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